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778 Madison Avenue

Manhattan · Upper East Side-Carnegie Hill, NY 10065

778 Madison Avenue is a 35-apartment building in Upper East Side-Carnegie Hill, built in 1907, managed by Trihill Management LLC. The City has 6 open housing-code violations on file for it, 3 of them immediately hazardous, about 0.17 per apartment, in a neighborhood where most buildings have none on record (HPD, as of 5 October 2026). Tenants filed 27 complaints with 311 in the past year, which the City closed in a median of 8 days (311, as of 5 October 2026). No tenant has reviewed it here yet. Everything above comes from the City's own records.

Managed by Trihill Management LLC

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Units
35
Year built
1907
Borough
Manhattan

This building’s record with the City

Complaints tenants filed with 311, and repairs a City inspector has asked for. Most repairs are routine maintenance. Both describe the building rather than the people in it, and often predate the current management.

3.1/5About average for the areaScored from the records below against every building we cover. It is not a tenant rating. Nobody who lived here said this.

27tenant complaints

Filed with 311 in the past year · 3 the year before

Typically closed in 8 days · neighborhood median is 4

6open repairs

Outstanding with HPD · about 0.2 per apartment

Immediately hazardous
3
Hazardous
2
Non-hazardous
1

What the open repairs are about

  • Smoke and CO alarms4
  • Stairs, floors and ceilings1
  • Heat or hot water1
  • Doors, windows and locks1

Source: NYC 311 and Housing Preservation & Development. Look this building up · updated Oct 2026

The company that manages it, elsewhere

Trihill Management LLC manages 17 other buildings we cover, holding 440 apartments.

open violations
357open violations
immediately hazardous
132immediately hazardous
311 complaints
307311 complaints

in the past year

per apartment
0.8per apartment

The company’s record across its other buildings, not this building’s. A company can run one well and another badly, and these figures often predate the current management. (HPD and 311, as of 5 October 2026.)

What tenants say

Nobody has written about 778 Madison Avenue yet.

Does the heat hold in January? How long does the super take? Does management answer the phone, and were you charged what you expected? No public record answers any of that. Only someone who lived here can.

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Also on Madison Avenue

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